Results 61 to 70 of about 24,234 (169)

Galaxy Assembly Bias in the Stellar-to-halo Mass Relation for Red Central Galaxies from SDSS

open access: yesThe Astrophysical Journal
We report evidence of galaxy assembly bias—the correlation between galaxy properties and biased secondary halo properties at fixed halo mass ( M _H )—in the stellar-to-halo mass relation for red central galaxies from the Sloan Digital Sky Survey.
Grecco A. Oyarzún   +4 more
doaj   +1 more source

The motions of clusters and group of galaxies

open access: yesThe Astrophysical Journal, 1994
25p plaintex submitted to The Astrophysical ...
Bahcall, Neta A.   +2 more
openaire   +3 more sources

Linking X-ray emission to galaxy populations in GAMA groups

open access: yesAstronomy & Astrophysics
Context. The evolution of galaxies is strongly influenced by their environment, but the role of the intragroup medium in shaping galaxy properties at group scales remains unclear.
Levis Selene   +5 more
doaj   +1 more source

THE LOCAL DWARF GALAXIES:BUILDING BLOCKS OFMASSIVE ONES? I.THE FORNAX DWARF GALAXY

open access: yesOdessa Astronomical Publications, 2008
A chemical evolution of the Local Group dwarf galaxy Fornax is considered in the framework of the merger scenario. We suppose a galactic stellar halo to be formed as separate fragments which then merge; thus, we can calculate the set of such the ...
T. V. Nykytyuk
doaj   +1 more source

Unveiling large-scale rotational motions in the intragroup medium at z ∼ 1 through gravitational-arc tomography★

open access: yesAstronomy & Astrophysics
Context. The circumgalactic medium (CGM) is a crucial interface between galaxies and their large-scale environment, regulating gas accretion and feedback processes.
Ledoux Cédric   +10 more
doaj   +1 more source

Optical Observations of M81 Galaxy Group in Narrow Band [SII] and H_alpha Filters: Holmberg IX [PDF]

open access: yesSerbian Astronomical Journal, 2009
We present observations of the nearby tidal dwarf galaxy Holmberg IX in M81 galaxy group in narrow band [SII] and H$alpha$ filters, carried out in March and November 2008 with the 2m RCC telescope at NAO Rozhen, Bulgaria.
Arbutina, B.   +5 more
doaj  

DWARF GALAXIES OF THE LOCAL GROUP [PDF]

open access: yesAnnual Review of Astronomy and Astrophysics, 1998
▪ Abstract  The Local Group dwarf galaxies offer a unique window to the detailed properties of the most common type of galaxy in the Universe. In this review, I update the census of Local Group dwarfs based on the most recent distance and radial velocity determinations.
openaire   +2 more sources

The impact of strong feedback on galaxy group scaling relations

open access: yesAstronomy & Astrophysics
Feedback from active supermassive black holes alters the distribution of matter in the Universe by injecting energy in the neighbouring hot gaseous medium, which leads to ejection of gas from the halos of galaxy groups and massive galaxies.
Eckert D.   +18 more
doaj   +1 more source

The Karl G. Jansky Very Large Array Local Group L-Band Survey (LGLBS)

open access: yesThe Astrophysical Journal Supplement Series
We present the Local Group L -Band Survey, a Karl G. Jansky Very Large Array (VLA) survey producing the highest-quality 21 cm and 1–2 GHz radio continuum images to date, for the six VLA-accessible, star-forming, Local Group galaxies. Leveraging the VLA’s
Eric W. Koch   +47 more
doaj   +1 more source

A study of the large-scale formation in the environment of A3266

open access: yesAstronomy & Astrophysics
Context. Abell 3266 (A3266) is a dynamically active galaxy cluster embedded in a dense environment of galaxy groups and clusters at similar redshift. Data from the Spektrum Roentgen Gamma (SRG)/eROSITA all-sky survey enable us to study the large-scale ...
Dietl J.   +9 more
doaj   +1 more source

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